GREEN B UILDING, E NERGY R ETROFIT & S OLAR T RANSFORMATION

Who is Marin Green BERST? A Task Force composed of elected or appointed representatives from each Marin city, town and the County to develop policy recommendations and champion these efforts within their jurisdictions. A Technical Advisory Committee of volunteers with expertise in construction, energy efficiency and conservation to advise the Task Force.

Who is Marin Green BERST? Technical Advisory Committee composition:  2 Building Officials (Novato and Belvedere)  3 Architects  2 Contractors  Energy efficiency/green building auditor  Energy consultant  Marin Builders Association  Marin Association of Realtors  Marin Energy Authority  PG&E  Strategic Energy Innovations  MMWD  Marin Conservation League  Marin County Planning Directors

Why Marin Green BERST? Results of San Rafael’s Greenhouse Gas Inventory:

Marin Green BERST Marin Green BERST Energy Efficiency 20% gain in energy efficiency of existing buildings Removing ½ of all cars from the road =

Marin Green BERST Marin Green BERST Energy Efficiency 20% gain in energy efficiency of existing buildings Removing ½ of all cars from the road =

Marin Green BERST Marin Green BERST Objectives 1.Regulations which are consistently implemented across Marin jurisdictions. 2.Regulations which achieve, in priority order:  Energy savings  Greenhouse gas reductions  Water conservation  Practicality of implementation  Cost effectiveness  Improved indoor air quality & occupant health  Resource conservation  Adaptability for future technology  Effective marketing  Environmental protection

Marin Green BERST Marin Green BERST Endorsements Model Green Building Ordinance endorsed by:  Marin Green BERST Task Force  Marin Builders Association Green Building Committee

Marin Green BERST Marin Green BERST Recommendations: Residential Covered ProjectGreen Building Rating System Minimum Compliance Threshold Energy Budget Below CA Title 24 Part 6 Verification Single-Family or Two-Family Residential: New construction 500-2,499 sq. ft.GPR New Home75 points15%Green Point Rated 1 2,500-3,999 sq. ft.GPR New Home100 points15%Green Point Rated 1 4,000-5,499 sq. ft.GPR New Home125 points20%Green Point Rated 1 5,500-6,999 sq. ft.GPR New Home150 points30%Green Point Rated 1 7,000+ sq. ft.GPR New Home200 pointsNet zero energyGreen Point Rated 1

Marin Green BERST Marin Green BERST Recommendations: Residential Cost Estimates – New Single Family  GreenPoint Rater: $1,500-2,500  BIG GreenPoint Rated certification: $450  Cost of energy upgrades: ~$1/sq. ft. (~0.5% of project cost)  $200 annual energy savings ≈ $40,000 savings over the life of the building

Marin Green BERST Marin Green BERST Recommendations: Residential Covered ProjectGreen Building Rating System Minimum Compliance Threshold Energy Budget Below CA Title 24 Part 6 Verification Multi-Family Residential: New Construction Less than 1,000 sq. ft. ave. unit sizeGPR Multi-Family60 points15%GreenPoint Rated 1 1,000+ sq. ft. average unit sizeGPR Multi-Family75 points15%GreenPoint Rated 1

Marin Green BERST Marin Green BERST Recommendations: Residential Covered ProjectGreen Building Rating System Minimum Compliance ThresholdVerification Single-Family or Two-Family Residential: Renovations (including additions to existing buildings) Less than $50,000 valuationn/aInsulate exposed hot water pipes; Install radiant barrier when reroofing and removing sheathing City building inspector $50,000-$99,999 valuation or less than 500 sq. ft. 3 GPR Existing HomeChecklist submittal and completion of a HERSII or BPI home performance audit City plan check $100,000-$149,999 valuation or sq. ft. 3 GPR Existing Home – Elements 25 pointsGreenPoint Rater 2 $150,000-$299,999 valuation or sq. ft. 3 GPR Existing Home – Elements 35 pointsGreenPoint Rater 2 $300,000+ valuation or 1,000+ sq. ft. 3 GPR Existing Home – Whole House 50 points + 20% improvement in HERSII or BPI home performance audit results or a minimum HERSII score of 100 GreenPoint Rated 2

Marin Green BERST Marin Green BERST Recommendations: Residential Cost Estimates – Renovated Single Family  HERSII or BPI home performance audit: $350 - $800  GreenPoint Rater: $750-1,500 (can be the project architect)  No reliable data on the cost of upgrades

Marin Green BERST Marin Green BERST Recommendations: Non-Residential Covered ProjectGreen Building Rating System Minimum Compliance Threshold Energy Budget Below CA Title 24 Part 6 Verification New Construction (including additions to existing buildings) 2,000-4,999 sq. ft.LEED ® New Construction or Core & Shell Checklist submittal + compliance with Prerequisites LEED ® AP with additional GreenPoint Rater or BPI Certification 5,000-49,999 sq. ft.LEED ® New Construction or Core & Shell LEED ® Silver15%LEED ® AP with additional GreenPoint Rater or BPI Certification 50,000+ sq. ft.LEED ® New Construction or Core & Shell LEED ® Gold15%GBCI Certified

Marin Green BERST Marin Green BERST Recommendations: Non Residential Cost Estimates – New Office  LEED AP: depends on project scope - can be the project architect  Cost of energy upgrades: ~$ /sq. ft. (~0.5% – 0.8% of project cost)  Overall cost of LEED upgrades: ~1-6% of construction cost  LEED certification (only buildings 50,000sf+): $10,000+?

Marin Green BERST Marin Green BERST Recommendations: Non-Residential Covered ProjectGreen Building Rating System Minimum Compliance ThresholdVerification Renovations Less than $500,000 valuation or 500-4,999 sq. ft. 3 LEED ® Commercial Interiors or Operations & Maintenance Voluntary compliance with the following Prerequisites: WE P1 (Water Efficiency–Baseline Requirements only) 4 EA P3 (Fundamental Refrigerant Management) for renovations of >50% of the building interior area Voluntary compliance with the following Credits: EA C1.3 (Optimize Energy Performance – HVAC) for renovations of >50% of the building interior area None $500,000 - $5 million valuation or 5, ,999 sq. ft. 3 LEED ® Commercial Interiors or Operations & Maintenance Same as above, but Required.City building inspector Greater than $5 million valuation or 25,000+ sq. ft. 3 LEED ® Commercial Interiors or Operations & Maintenance LEED ® SilverLEED ® AP with additional GreenPoint Rater or BPI Certification

Marin Green BERST Marin Green BERST Cost Effectiveness Study  Calif. Energy Commission must approve cost effectiveness to exceed Title 24 reqmts.  Study examined 12 prototypical new single family homes, 4 new multi-family projects and 4 new office buildings  Generally, additional costs for energy upgrades is about $1/sq. ft. (except 7,500sf single family “net zero energy” home)  Average simple payback in ~13 – 20 years

GREEN B UILDING, E NERGY R ETROFIT & S OLAR T RANSFORMATION